October
Weather in St Helier for October 2025
Your guide to St Helier weather in October - trends and predictions
In general, the average temperature in St Helier at the beginning of October is 16.9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 14.9 °C by the end of October.
St Helier experiences an exceptionally high level of rainfall in October, with more than 20 rainy days on average.
Is October a good time to visit St Helier? check out the best time to travel to St Helier page.
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10
Dry days
21
Rainy days
0
Snow days
16°/14°
Temperatures
40 km/h
Avg max wind
75 %
Avg humidity
St Helier in October average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  17° | 2  18° | 3 17° | 4 16° | 5  16° | ||
| 6  17° | 7 17° | 8 18° | 9 17° | 10 16° | 11 17° | 12 17° |
| 13 17° | 14  15° | 15 15° | 16 16° | 17 16° | 18  16° | 19 16° |
| 20 16° | 21 15° | 22 17° | 23 15° | 24 16° | 25 14° | 26 14° |
| 27 15° | 28  15° | 29 15° | 30 16° | 31 15° |
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Temperatures trend during October in St Helier
See the weather trend as well as the moving average line
October weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Oct. | Partly cloudy | 17° /15° | 0.8 mm | 5 | |
| 2 Oct. | Patchy rain possible | 18° /16° | 1 mm | 5 | |
| 3 Oct. | Patchy rain possible | 17° /14° | 0.6 mm | 4 | |
| 4 Oct. | Patchy rain possible | 16° /13° | 0.2 mm | 4 | |
| 5 Oct. | Overcast | 16° /14° | 4.9 mm | 4 | |
| 6 Oct. | Sunny | 17° /14° | 1.1 mm | 5 | |
| 7 Oct. | Sunny | 17° /15° | 3.3 mm | 5 | |
| 8 Oct. | Sunny | 18° /16° | 1.7 mm | 5 | |
| 9 Oct. | Partly cloudy | 17° /15° | 0.6 mm | 5 | |
| 10 Oct. | Sunny | 16° /14° | 0.9 mm | 4 | |
| 11 Oct. | Partly cloudy | 17° /14° | 0.5 mm | 4 | |
| 12 Oct. | Light rain shower | 17° /15° | 1.3 mm | 5 | |
| 13 Oct. | Light rain shower | 17° /14° | 9 mm | 4 | |
| 14 Oct. | Patchy light drizzle | 15° /13° | 0.4 mm | 4 | |
| 15 Oct. | Patchy rain possible | 15° /13° | 0.8 mm | 4 | |
| 16 Oct. | Overcast | 16° /13° | 5.2 mm | 4 | |
| 17 Oct. | Overcast | 16° /12° | 0.7 mm | 4 | |
| 18 Oct. | Moderate rain | 16° /15° | 10.7 mm | 4 | |
| 19 Oct. | Light rain shower | 16° /14° | 8.2 mm | 4 | |
| 20 Oct. | Light rain shower | 16° /14° | 5 mm | 4 | |
| 21 Oct. | Light rain shower | 15° /12° | 12.7 mm | 4 | |
| 22 Oct. | Patchy rain possible | 17° /14° | 1 mm | 5 | |
| 23 Oct. | Light rain shower | 15° /12° | 8.7 mm | 5 | |
| 24 Oct. | Light rain shower | 16° /12° | 5.5 mm | 4 | |
| 25 Oct. | Light rain shower | 14° /12° | 6.5 mm | 3 | |
| 26 Oct. | Light rain shower | 14° /12° | 5.7 mm | 4 | |
| 27 Oct. | Light rain shower | 15° /12° | 5 mm | 4 | |
| 28 Oct. | Moderate or heavy rain with thunder | 15° /13° | 4.9 mm | 4 | |
| 29 Oct. | Light rain shower | 15° /13° | 3.3 mm | 4 | |
| 30 Oct. | Light rain shower | 16° /13° | 3.3 mm | 5 | |
| 31 Oct. | Light rain shower | 15° /13° | 3.2 mm | 5 | |
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Important Notice
Our weather forecast for St Helier in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the St Helier forecast closer to your planned date for the most up-to-date weather information.
St Helier in October - FAQ
What are the expected maximum and minimum temperatures in St Helier during October?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in St Helier during October?
Significant rainfall exceeding 158.2 mm is expected in St Helier during October, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in St Helier during October?
The average wind speed in St Helier during October is 40 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to St Helier in October?
As you prepare for your trip to St Helier in October, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in St Helier, during October, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
October rainfall patterns in St Helier
Explore the daily rainfall trends and prepare for St Heliers October weather 💧
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